X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/dccb75b60dfdca505edf8bb9512979501277c142..316189733a8b7f28aa7f9f555884bb45da30da33:/docs/latex/wx/font.tex diff --git a/docs/latex/wx/font.tex b/docs/latex/wx/font.tex index 7fa1453b5a..e76f024b30 100644 --- a/docs/latex/wx/font.tex +++ b/docs/latex/wx/font.tex @@ -4,6 +4,10 @@ A font is an object which determines the appearance of text. Fonts are used for drawing text to a device context, and setting the appearance of a window's text. +You can retrieve the current system font settings with \helpref{wxSystemSettings}{wxsystemsettings}. + +\helpref{wxSystemSettings}{wxsystemsettings} + \wxheading{Derived from} \helpref{wxGDIObject}{wxgdiobject}\\ @@ -15,6 +19,64 @@ a window's text. \wxheading{Constants} +The possible values for the \arg{family} parameter of \helpref{wxFont +constructor}{wxfontctor} are (the old names are for compatibility only): + +\begin{verbatim} +enum wxFontFamily +{ + wxFONTFAMILY_DEFAULT = wxDEFAULT, + wxFONTFAMILY_DECORATIVE = wxDECORATIVE, + wxFONTFAMILY_ROMAN = wxROMAN, + wxFONTFAMILY_SCRIPT = wxSCRIPT, + wxFONTFAMILY_SWISS = wxSWISS, + wxFONTFAMILY_MODERN = wxMODERN, + wxFONTFAMILY_TELETYPE = wxTELETYPE, + wxFONTFAMILY_MAX +}; +\end{verbatim} + +The possible values for the \arg{weight} parameter are (the old names +are for compatibility only): + +\begin{verbatim} +enum wxFontWeight +{ + wxFONTWEIGHT_NORMAL = wxNORMAL, + wxFONTWEIGHT_LIGHT = wxLIGHT, + wxFONTWEIGHT_BOLD = wxBOLD, + wxFONTWEIGHT_MAX +}; +\end{verbatim} + +The font flags which can be used during the font creation are: + +\begin{verbatim} +enum +{ + // no special flags: font with default weight/slant/anti-aliasing + wxFONTFLAG_DEFAULT = 0, + + // slant flags (default: no slant) + wxFONTFLAG_ITALIC = 1 << 0, + wxFONTFLAG_SLANT = 1 << 1, + + // weight flags (default: medium) + wxFONTFLAG_LIGHT = 1 << 2, + wxFONTFLAG_BOLD = 1 << 3, + + // anti-aliasing flag: force on or off (default: the current system default) + wxFONTFLAG_ANTIALIASED = 1 << 4, + wxFONTFLAG_NOT_ANTIALIASED = 1 << 5, + + // underlined/strikethrough flags (default: no lines) + wxFONTFLAG_UNDERLINED = 1 << 6, + wxFONTFLAG_STRIKETHROUGH = 1 << 7, +}; +\end{verbatim} + +The known font encodings are: + \begin{verbatim} enum wxFontEncoding { @@ -92,73 +154,92 @@ wxSWISS\_FONT} \helpref{wxFont overview}{wxfontoverview}, \helpref{wxDC::SetFont}{wxdcsetfont},\rtfsp \helpref{wxDC::DrawText}{wxdcdrawtext}, \helpref{wxDC::GetTextExtent}{wxdcgettextextent},\rtfsp -\helpref{wxFontDialog}{wxfontdialog} +\helpref{wxFontDialog}{wxfontdialog}, \helpref{wxSystemSettings}{wxsystemsettings} \latexignore{\rtfignore{\wxheading{Members}}} -\membersection{wxFont::wxFont}\label{wxfontconstr} + +\membersection{wxFont::wxFont}\label{wxfontctor} \func{}{wxFont}{\void} Default constructor. -\func{}{wxFont}{\param{int}{ pointSize}, \param{int}{ family}, \param{int}{ style}, \param{int}{ weight}, - \param{const bool}{ underline = FALSE}, \param{const wxString\& }{faceName = ""}, +\func{}{wxFont}{\param{int}{ pointSize}, \param{wxFontFamily}{ family}, \param{int}{ style}, \param{wxFontWeight}{ weight}, + \param{const bool}{ underline = false}, \param{const wxString\& }{faceName = ""}, + \param{wxFontEncoding }{encoding = wxFONTENCODING\_DEFAULT}} + +\func{}{wxFont}{\param{const wxSize\&}{ pixelSize}, \param{wxFontFamily}{ family}, \param{int}{ style}, \param{wxFontWeight}{ weight}, + \param{const bool}{ underline = false}, \param{const wxString\& }{faceName = ""}, \param{wxFontEncoding }{encoding = wxFONTENCODING\_DEFAULT}} -Creates a font object (see \helpref{font encoding -overview}{wxfontencodingoverview} for the meaning of the last parameter). +Creates a font object with the specified attributes. \wxheading{Parameters} \docparam{pointSize}{Size in points.} +\docparam{pixelSize}{Size in pixels: this is directly supported only under MSW +currently where this constructor can be used directly, under other platforms a +font with the closest size to the given one is found using binary search and +the static \helpref{New}{wxfontnew} method must be used.} + \docparam{family}{Font family, a generic way of referring to fonts without specifying actual facename. One of: \twocolwidtha{5cm} \begin{twocollist}\itemsep=0pt -\twocolitem{{\bf wxDEFAULT}}{Chooses a default font.} -\twocolitem{{\bf wxDECORATIVE}}{A decorative font.} -\twocolitem{{\bf wxROMAN}}{A formal, serif font.} -\twocolitem{{\bf wxSCRIPT}}{A handwriting font.} -\twocolitem{{\bf wxSWISS}}{A sans-serif font.} -\twocolitem{{\bf wxMODERN}}{A fixed pitch font.} +\twocolitem{{\bf wxFONTFAMILY\_DEFAULT}}{Chooses a default font.} +\twocolitem{{\bf wxFONTFAMILY\_DECORATIVE}}{A decorative font.} +\twocolitem{{\bf wxFONTFAMILY\_ROMAN}}{A formal, serif font.} +\twocolitem{{\bf wxFONTFAMILY\_SCRIPT}}{A handwriting font.} +\twocolitem{{\bf wxFONTFAMILY\_SWISS}}{A sans-serif font.} +\twocolitem{{\bf wxFONTFAMILY\_MODERN}}{A fixed pitch font.} +\twocolitem{{\bf wxFONTFAMILY\_TELETYPE}}{A teletype font.} \end{twocollist}} -\docparam{style}{One of {\bf wxNORMAL}, {\bf wxSLANT} and {\bf wxITALIC}.} +\docparam{style}{One of {\bf wxFONTSTYLE\_NORMAL}, {\bf wxFONTSTYLE\_SLANT} and {\bf wxFONTSTYLE\_ITALIC}.} -\docparam{weight}{One of {\bf wxNORMAL}, {\bf wxLIGHT} and {\bf wxBOLD}.} +\docparam{weight}{Font weight, sometimes also referred to as font boldness. One of: -\docparam{underline}{The value can be TRUE or FALSE. At present this has an effect on Windows only.} +\twocolwidtha{5cm} +\begin{twocollist}\itemsep=0pt +\twocolitem{{\bf wxFONTWEIGHT\_NORMAL}}{Normal font.} +\twocolitem{{\bf wxFONTWEIGHT\_LIGHT}}{Light font.} +\twocolitem{{\bf wxFONTWEIGHT\_BOLD}}{Bold font.} +\end{twocollist}} + +\docparam{underline}{The value can be true or false. At present this has an effect on Windows and Motif 2.x only.} -\docparam{faceName}{An optional string specifying the actual typeface to be used. If the empty string, -a default typeface will chosen based on the family.} +\docparam{faceName}{An optional string specifying the actual typeface to be used. If it is an empty string, +a default typeface will be chosen based on the family.} \docparam{encoding}{An encoding which may be one of \twocolwidtha{5cm} \begin{twocollist}\itemsep=0pt \twocolitem{{\bf wxFONTENCODING\_SYSTEM}}{Default system encoding.} \twocolitem{{\bf wxFONTENCODING\_DEFAULT}}{Default application encoding: this -is the encoding set by calls to +is the encoding set by calls to \helpref{SetDefaultEncoding}{wxfontsetdefaultencoding} and which may be set to, say, KOI8 to create all fonts by default with KOI8 encoding. Initially, the default application encoding is the same as default system encoding.} \twocolitem{{\bf wxFONTENCODING\_ISO8859\_1...15}}{ISO8859 encodings.} -\twocolitem{{\bf wxFONTENCODING\_KOI8}}{The standard russian encoding for Internet.} +\twocolitem{{\bf wxFONTENCODING\_KOI8}}{The standard Russian encoding for Internet.} \twocolitem{{\bf wxFONTENCODING\_CP1250...1252}}{Windows encodings similar to ISO8859 (but not identical).} \end{twocollist} -If the specified encoding isn't available, no font is created. +If the specified encoding isn't available, no font is created +(see also \helpref{font encoding overview}{wxfontencodingoverview}). } \wxheading{Remarks} If the desired font does not exist, the closest match will be chosen. -Under Windows, only scaleable TrueType fonts are used. +Under Windows, only scalable TrueType fonts are used. See also \helpref{wxDC::SetFont}{wxdcsetfont}, \helpref{wxDC::DrawText}{wxdcdrawtext} and \helpref{wxDC::GetTextExtent}{wxdcgettextextent}. -\membersection{wxFont::\destruct{wxFont}} + +\membersection{wxFont::\destruct{wxFont}}\label{wxfontdtor} \func{}{\destruct{wxFont}}{\void} @@ -171,20 +252,30 @@ system, since wxFont uses a reference counting system for efficiency. Although all remaining fonts are deleted when the application exits, the application should try to clean up all fonts itself. This is because -wxWindows cannot know if a pointer to the font object is stored in an +wxWidgets cannot know if a pointer to the font object is stored in an application data structure, and there is a risk of double deletion. + +\membersection{wxFont::IsFixedWidth}\label{wxfontisfixedwidth} + +\constfunc{bool}{IsFixedWidth}{\void} + +Returns {\tt true} if the font is a fixed width (or monospaced) font, +{\tt false} if it is a proportional one or font is invalid. + + \membersection{wxFont::GetDefaultEncoding}\label{wxfontgetdefaultencoding} \func{static wxFontEncoding}{GetDefaultEncoding}{\void} -Returns the current applications default encoding. +Returns the current application's default encoding. \wxheading{See also} -\helpref{Font encoding overview}{wxfontencodingoverview}, +\helpref{Font encoding overview}{wxfontencodingoverview}, \helpref{SetDefaultEncoding}{wxfontsetdefaultencoding} + \membersection{wxFont::GetFaceName}\label{wxfontgetfacename} \constfunc{wxString}{GetFaceName}{\void} @@ -196,17 +287,19 @@ typeface information. \helpref{wxFont::SetFaceName}{wxfontsetfacename} + \membersection{wxFont::GetFamily}\label{wxfontgetfamily} -\constfunc{int}{GetFamily}{\void} +\constfunc{wxFontFamily}{GetFamily}{\void} -Gets the font family. See \helpref{wxFont::wxFont}{wxfontconstr} for a list of valid +Gets the font family. See \helpref{wxFont::SetFamily}{wxfontsetfamily} for a list of valid family identifiers. \wxheading{See also} \helpref{wxFont::SetFamily}{wxfontsetfamily} + \membersection{wxFont::GetNativeFontInfoDesc}\label{wxfontgetnativefontinfodesc} \constfunc{wxString}{GetNativeFontInfoDesc}{\void} @@ -218,6 +311,7 @@ empty string if the font wasn't constructed using the native font description. \helpref{wxFont::SetNativeFontInfo}{wxfontsetnativefontinfo} + \membersection{wxFont::GetPointSize}\label{wxfontgetpointsize} \constfunc{int}{GetPointSize}{\void} @@ -228,38 +322,74 @@ Gets the point size. \helpref{wxFont::SetPointSize}{wxfontsetpointsize} + \membersection{wxFont::GetStyle}\label{wxfontgetstyle} \constfunc{int}{GetStyle}{\void} -Gets the font style. See \helpref{wxFont::wxFont}{wxfontconstr} for a list of valid +Gets the font style. See \helpref{wxFont::wxFont}{wxfontctor} for a list of valid styles. \wxheading{See also} \helpref{wxFont::SetStyle}{wxfontsetstyle} + \membersection{wxFont::GetUnderlined}\label{wxfontgetunderlined} \constfunc{bool}{GetUnderlined}{\void} -Returns TRUE if the font is underlined, FALSE otherwise. +Returns true if the font is underlined, false otherwise. \wxheading{See also} \helpref{wxFont::SetUnderlined}{wxfontsetunderlined} + \membersection{wxFont::GetWeight}\label{wxfontgetweight} -\constfunc{int}{GetWeight}{\void} +\constfunc{wxFontWeight}{GetWeight}{\void} -Gets the font weight. See \helpref{wxFont::wxFont}{wxfontconstr} for a list of valid +Gets the font weight. See \helpref{wxFont::wxFont}{wxfontctor} for a list of valid weight identifiers. \wxheading{See also} \helpref{wxFont::SetWeight}{wxfontsetweight} + +\membersection{wxFont::New}\label{wxfontnew} + +\func{static wxFont *}{New}{\param{int}{ pointSize}, \param{wxFontFamily}{ family}, \param{int}{ style}, \param{wxFontWeight}{ weight}, + \param{const bool}{ underline = false}, \param{const wxString\& }{faceName = ""}, + \param{wxFontEncoding }{encoding = wxFONTENCODING\_DEFAULT}} + +\func{static wxFont *}{New}{\param{int}{ pointSize}, \param{wxFontFamily}{ family}, + \param{int}{ flags = \texttt{wxFONTFLAG\_DEFAULT}}, \param{const wxString\& }{faceName = ""}, + \param{wxFontEncoding }{encoding = wxFONTENCODING\_DEFAULT}} + +\func{static wxFont *}{New}{\param{const wxSize\&}{ pixelSize}, \param{wxFontFamily}{ family}, \param{int}{ style}, \param{wxFontWeight}{ weight}, + \param{const bool}{ underline = false}, \param{const wxString\& }{faceName = ""}, + \param{wxFontEncoding }{encoding = wxFONTENCODING\_DEFAULT}} + +\func{static wxFont *}{New}{\param{const wxSize\&}{ pixelSize}, \param{wxFontFamily}{ family}, + \param{int}{ flags = \texttt{wxFONTFLAG\_DEFAULT}}, \param{const wxString\& }{faceName = ""}, + \param{wxFontEncoding }{encoding = wxFONTENCODING\_DEFAULT}} + +These functions take the same parameters as \helpref{wxFont +constructor}{wxfontctor} and return a new font object allocated on the heap. + +Using \texttt{New()} is currently the only way to directly create a font with +the given size in pixels on platforms other than wxMSW. + + +\membersection{wxFont::Ok}\label{wxfontok} + +\constfunc{bool}{Ok}{\void} + +Returns {\tt true} if this object is a valid font, {\tt false} otherwise. + + \membersection{wxFont::SetDefaultEncoding}\label{wxfontsetdefaultencoding} \func{static void}{SetDefaultEncoding}{\param{wxFontEncoding }{encoding}} @@ -268,9 +398,10 @@ Sets the default font encoding. \wxheading{See also} -\helpref{Font encoding overview}{wxfontencodingoverview}, +\helpref{Font encoding overview}{wxfontencodingoverview}, \helpref{GetDefaultEncoding}{wxfontgetdefaultencoding} + \membersection{wxFont::SetFaceName}\label{wxfontsetfacename} \func{void}{SetFaceName}{\param{const wxString\& }{faceName}} @@ -285,16 +416,17 @@ Sets the facename for the font. To avoid portability problems, don't rely on a specific face, but specify the font family instead or as well. A suitable font will be found on the end-user's system. If both the -family and the facename are specified, wxWindows will first search for the specific face, +family and the facename are specified, wxWidgets will first search for the specific face, and then for a font belonging to the same family. \wxheading{See also} \helpref{wxFont::GetFaceName}{wxfontgetfacename}, \helpref{wxFont::SetFamily}{wxfontsetfamily} + \membersection{wxFont::SetFamily}\label{wxfontsetfamily} -\func{void}{SetFamily}{\param{int}{ family}} +\func{void}{SetFamily}{\param{wxFontFamily}{ family}} Sets the font family. @@ -304,27 +436,30 @@ Sets the font family. \twocolwidtha{5cm} \begin{twocollist}\itemsep=0pt -\twocolitem{{\bf wxDEFAULT}}{Chooses a default font.} -\twocolitem{{\bf wxDECORATIVE}}{A decorative font.} -\twocolitem{{\bf wxROMAN}}{A formal, serif font.} -\twocolitem{{\bf wxSCRIPT}}{A handwriting font.} -\twocolitem{{\bf wxSWISS}}{A sans-serif font.} -\twocolitem{{\bf wxMODERN}}{A fixed pitch font.} +\twocolitem{{\bf wxFONTFAMILY\_DEFAULT}}{Chooses a default font.} +\twocolitem{{\bf wxFONTFAMILY\_DECORATIVE}}{A decorative font.} +\twocolitem{{\bf wxFONTFAMILY\_ROMAN}}{A formal, serif font.} +\twocolitem{{\bf wxFONTFAMILY\_SCRIPT}}{A handwriting font.} +\twocolitem{{\bf wxFONTFAMILY\_SWISS}}{A sans-serif font.} +\twocolitem{{\bf wxFONTFAMILY\_MODERN}}{A fixed pitch font.} +\twocolitem{{\bf wxFONTFAMILY\_TELETYPE}}{A teletype font.} \end{twocollist}} \wxheading{See also} \helpref{wxFont::GetFamily}{wxfontgetfamily}, \helpref{wxFont::SetFaceName}{wxfontsetfacename} + \membersection{wxFont::SetNativeFontInfo}\label{wxfontsetnativefontinfo} \func{void}{SetNativeFontInfo}{\param{const wxString\& }{info}} Creates the font corresponding to the given native font description string -which must have been previously returned by +which must have been previously returned by \helpref{GetNativeFontInfoDesc}{wxfontgetnativefontinfodesc}. If the string is invalid, font is unchanged. + \membersection{wxFont::SetPointSize}\label{wxfontsetpointsize} \func{void}{SetPointSize}{\param{int}{ pointSize}} @@ -339,6 +474,7 @@ Sets the point size. \helpref{wxFont::GetPointSize}{wxfontgetpointsize} + \membersection{wxFont::SetStyle}\label{wxfontsetstyle} \func{void}{SetStyle}{\param{int}{ style}} @@ -347,12 +483,13 @@ Sets the font style. \wxheading{Parameters} -\docparam{style}{One of {\bf wxNORMAL}, {\bf wxSLANT} and {\bf wxITALIC}.} +\docparam{style}{One of {\bf wxFONTSTYLE\_NORMAL}, {\bf wxFONTSTYLE\_SLANT} and {\bf wxFONTSTYLE\_ITALIC}.} \wxheading{See also} \helpref{wxFont::GetStyle}{wxfontgetstyle} + \membersection{wxFont::SetUnderlined}\label{wxfontsetunderlined} \func{void}{SetUnderlined}{\param{const bool}{ underlined}} @@ -361,26 +498,35 @@ Sets underlining. \wxheading{Parameters} -\docparam{underlining}{TRUE to underline, FALSE otherwise.} +\docparam{underlining}{true to underline, false otherwise.} \wxheading{See also} \helpref{wxFont::GetUnderlined}{wxfontgetunderlined} + \membersection{wxFont::SetWeight}\label{wxfontsetweight} -\func{void}{SetWeight}{\param{int}{ weight}} +\func{void}{SetWeight}{\param{wxFontWeight}{ weight}} Sets the font weight. \wxheading{Parameters} -\docparam{weight}{One of {\bf wxNORMAL}, {\bf wxLIGHT} and {\bf wxBOLD}.} +\docparam{weight}{One of: + +\twocolwidtha{5cm} +\begin{twocollist}\itemsep=0pt +\twocolitem{{\bf wxFONTWEIGHT\_NORMAL}}{Normal font.} +\twocolitem{{\bf wxFONTWEIGHT\_LIGHT}}{Light font.} +\twocolitem{{\bf wxFONTWEIGHT\_BOLD}}{Bold font.} +\end{twocollist}} \wxheading{See also} \helpref{wxFont::GetWeight}{wxfontgetweight} + \membersection{wxFont::operator $=$}\label{wxfontassignment} \func{wxFont\&}{operator $=$}{\param{const wxFont\& }{font}} @@ -388,15 +534,17 @@ Sets the font weight. Assignment operator, using reference counting. Returns a reference to `this'. + \membersection{wxFont::operator $==$}\label{wxfontequals} \func{bool}{operator $==$}{\param{const wxFont\& }{font}} Equality operator. Two fonts are equal if they contain pointers to the same underlying font data. It does not compare each attribute, -so two indefontdently-created fonts using the same parameters will +so two independently-created fonts using the same parameters will fail the test. + \membersection{wxFont::operator $!=$}\label{wxfontnotequals} \func{bool}{operator $!=$}{\param{const wxFont\& }{font}} @@ -404,4 +552,3 @@ fail the test. Inequality operator. Two fonts are not equal if they contain pointers to different underlying font data. It does not compare each attribute. -